Home / 115,150.89-172,595.31-70,072.83

Finding the Fourth Proportional to 115,150.89, 172,595.31 and 70,072.83

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Solution

The fourth proportional to 115,150.89, 172,595.31 and 70,072.83 is: 105,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,150.89 : 172,595.31 = 70,072.83 : x
  2. Step 2: Convert to fraction form
    115,150.89/172,595.31 = 70,072.83/x
  3. Step 3: Cross multiply
    115,150.89x = 172,595.31 × 70,072.83
  4. Step 4: Simplify right side
    115,150.89x = 12,094,240,780.01
  5. Step 5: Solve for x
    x = 12,094,240,780.01/115,150.89
  6. Step 6: Final answer
    x = 105,029.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.